(N.) An Urban Dictionary user who always posts definitions to a word on here a day or two immeadially after someone else has just put them in. They always add on to brand new words that a more popular author just puts in, and in a sense, "Follows You Around" like a Shadow.

If you check an UrbanShadow's Word Bank, it'll have the exact same words (and probably order) as someone else, who doesn't need to "Leech" off of other's definitions.